chore(deps): bump cachix/cachix-action from 14 to 15 (#505)

Bumps [cachix/cachix-action](https://github.com/cachix/cachix-action) from 14 to 15.
- [Release notes](https://github.com/cachix/cachix-action/releases)
- [Commits](cachix/cachix-action@v14...v15)

---
updated-dependencies:
- dependency-name: cachix/cachix-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci.yaml

@@ -23,7 +23,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: DeterminateSystems/nix-installer-action@main
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: elixir-tools
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
@@ -64,7 +64,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: DeterminateSystems/nix-installer-action@main
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: elixir-tools
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
@@ -91,7 +91,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: DeterminateSystems/nix-installer-action@main
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: elixir-tools
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
@@ -116,7 +116,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: DeterminateSystems/nix-installer-action@main
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: elixir-tools
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
@@ -173,7 +173,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: DeterminateSystems/nix-installer-action@main
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: elixir-tools
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
@@ -206,7 +206,7 @@ jobs:
       - uses: cachix/install-nix-action@V27
         with:
           github_access_token: ${{ secrets.GITHUB_TOKEN }}
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: elixir-tools
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'

.github/workflows/release.yaml

@@ -43,7 +43,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: DeterminateSystems/nix-installer-action@main
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: elixir-tools
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
@@ -78,7 +78,7 @@ jobs:
       - uses: cachix/install-nix-action@V27
         with:
           github_access_token: ${{ secrets.GITHUB_TOKEN }}
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: elixir-tools
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'